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Finding the Third Proportional to 158,698 and 210,615

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Solution

The third proportional to 158,698 and 210,615 is: 279,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,698 : 210,615 = 210,615 : x
  2. Step 2: Convert to fraction form
    158,698/210,615 = 210,615/x
  3. Step 3: Cross multiply
    158,698x = 210,615 × 210,615
  4. Step 4: Simplify right side
    158,698x = 44,358,678,225
  5. Step 5: Solve for x
    x = 44,358,678,225/158,698
  6. Step 6: Final answer
    x = 279,516.30

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.